JPS63258999A - Liquid detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a liquid cleaning composition, and more particularly, to a liquid cleaning composition that adheres to and deteriorates, particularly in the kitchen and its surroundings, such as ventilation fans, vertical surfaces such as walls, and ceilings. The present invention relates to a liquid cleaning composition having an appropriate viscosity that can efficiently and safely remove dirt and stains.

[Conventional technology and its problems]

Oil and fat stains derived from food are often altered by the effects of heat, sunlight, oxygen in the air, etc., and become resinous or semi-dry and hard stains. It is mainly seen attached to ventilation fans, range hoods, water heaters, vertical parts such as walls, and ceilings.

Alkaline detergents are effective for removing stubborn oil stains that adhere to vertical surfaces and ceilings, but conventional detergents have a low viscosity and can be sprayed onto the stains or sprayed in a spray container. The liquid may run down or sag quickly, so its effectiveness is not fully demonstrated, and the liquid may scatter or get onto clean areas, making it inconvenient to use.

In the case of neutral to weakly alkaline compositions, it is relatively easy to prepare compositions that have good retention properties for highly viscous stains, but these do not have sufficient cleaning power.゛In order to solve such problems, it has been proposed to use partially crosslinked polyacrylic acid as a thickener (Japanese Patent Application Laid-Open No. 59-1999)
-36200 and 59-66497).

Partial crosslinking agents used in these include polyvalent metal salts of acrylic acid or methacrylic acid, glyoxal alkenyl compounds, allylated glycerin, allylated pentaerythritol, allyl (meth)acrylate oligomers, triallyl isocyanurate, triallyl phosphate, Tetraallylsilane, polyalkenyl sulfone, butane diene oligomer, etc. have been proposed.

Systems containing these compounds effectively yield good results and pose no problems when stored under normal conditions, but when stored at particularly high temperatures, viscosity decreases and performance deteriorates. There was found.

The above-mentioned deterioration stains are generated in the kitchen, especially around areas where fire is used, and if the detergent used is left next to the gas stove after removing the target stain, and it is exposed to abnormally high temperatures. This becomes a problem under conditions where the product is stored at high temperatures, such as when the temperature inside a shop window becomes abnormally high due to the greenhouse effect in the summer.

[Means for solving problems]

The present inventors conducted studies to solve this problem and found that the objective could be achieved by using a specific crosslinking agent.

That is, the present invention provides: (a) 0.5 to 5% by weight of partially crosslinked polyacrylic acid crosslinked with a crosslinking agent represented by the following general formula (I);
, (X, Y, Z are -CI-C1 (or -GHz-
CI=CIlz+ or H, and two or more cannot be H at the same time. (b) Provides a liquid cleaning composition characterized in that it contains 0.1 to 30% by weight of one or more inorganic or organic alkaline agents as an essential component, and has a pi of 11 to 14. It is something to do.

In the partially crosslinked polyacrylic acid used as a thickener in the present invention, the crosslinking agent preferably accounts for 0.3 to 15% by weight of the acrylic acid; if the amount of the crosslinking agent is too small, sufficient viscosity cannot be obtained. If the amount is too large, the solubility will deteriorate, which is not preferable.

The partially crosslinked polyacrylic acid of the present invention exhibits a sufficient thickening effect both in alkaline conditions and in aqueous solutions with high ionic strength, and is stable even at high temperatures with almost no change in viscosity over time. .

In the present invention, the partially crosslinked polyacrylic acid is blended in the composition in an amount of 0.5 to 5% by weight, preferably 0.5 to 3.5% by weight. If the amount of partially crosslinked polyacrylic acid is less than this, the viscosity will be less than 100 cp, and if it is used on a vertical surface, it will immediately run off, and if it is more than this, the composition will become gel-like, causing problems in use.

Inorganic or organic alkaline agents include, for example, alkali metal hydroxides, silicates, carbonates, phosphates, borates, hydroxycarboxylate salts, or those of the following general formula (I) or (
II), (C1IH!I%OH)@NH3-m (I
) (C, Hzp-+), NHs--(II) (wherein,
(n is 2 or 3, p and m are integers of 1 to 3). Specifically, sodium hydroxide, potassium hydroxide, sodium silicate, sodium carbonate, sodium citrate, monoethanolamine,
Jetanolamine etc. are preferable, and if the cation of the alkaline agent is a polyvalent metal such as Cas ngsAl, the solubility of the partially crosslinked polyacrylic acid deteriorates, which is not preferable.
These alkaline agents are contained in the composition in an amount of 0.1 to 30% by weight,
Preferably, the content is 0.5 to 10% by weight, and the pH is 11 to 10%.
Adjust it so that it is 14.

The liquid cleaning composition of the present invention has the above-mentioned essential components (al, (
It is sufficient if it contains bl, but in addition to this, a surfactant,
Water-insoluble abrasives and oxidizing bleaches can also be blended.

The surfactant is not particularly limited, and cleaning active ingredients commonly used in household detergents can be used, but nonionic surfactants or anionic surfactants are particularly preferred.

These include, for example, straight or branched long chain alkyl benzene sulfonates, long chain monoalkyl sulfates, long chain alkyl sulfonates, long chain olefin sulfonates, and long chain alkyl or carbon sulfonates. number 8
to 18 alkylphenylpolyoxyethylenes (I to 18)
6) Anionic surfactants such as ether sulfates: polyoxyethylene (3 to 12) long chain alkyl or C8 to C18 alkyl phenyl ethers long chain fatty acid monoethanolamide, long chain fatty acid jetanolamide Examples include nonionic surfactants such as. These surfactants are blended in the composition in an amount of 0.1 to 20% by weight, preferably 0.5 to 10% by weight.

The abrasive increases the cleaning effect by its abrasive effect, and
The thickening effect and further opacity make it possible to confirm the location and degree of adhesion of the cleaning composition.

Examples of water-insoluble abrasives include silicon dioxide, aluminum oxide, magnesium oxide, titanium oxide, natural zeolite, silicon carbide, calcium carbonate, calcium phosphate, chromium oxide or corundum, emery, silica, quartz sand, dolomite, sand, and shells. natural pulverized products, synthetic zeolites, and polymer particles. this house,
Crushed silica or quartz sand is most commonly used. The particle size of the abrasive may be coarse, but a particle size of 2 to 150 microns is preferred in order not to damage the surface to be polished. These abrasives are present in the composition in an amount of 5 to 70% by weight.
It is particularly preferable to blend 10 to 60% by weight.

Oxidizing bleaches include alkali or alkaline earth metal salts of hypochlorous acid that produce hypochlorous acid species in aqueous solution, such as Nax K SL 1% of hypochlorous acid.
Examples include Cas Mg salt.

These exhibit bleaching and bactericidal effects on mold stains due to the strong oxidizing action of hypochlorous acid species. These oxidizing bleaches are present in the composition in an amount of 0.1 to 15% by weight, preferably 0.5% by weight.
~10% by weight is blended.

In addition to the above-mentioned components, the liquid detergent composition of the present invention may also contain optional components that are generally incorporated in such cases, such as small amounts of fragrances, pigments, dyes, disinfectants, solubilizers, etc. .

〔Example〕

Next, an example will be given and explained. In addition, % in an example was shown by weight ratio.

Example 1 A cleaning agent having the composition shown in Table 1 was prepared, and its viscosity and storage stability were examined.

(The I1 viscosity detergent was placed in a viscosity beaker, heated to 20°C, and measured using a B-type viscometer (rotation speed: 30 rpa+).

(2) Retention property on vertical surfaces A cleaning agent stored at 40° C. for 60 days was attached to a vertically erected polypropylene plate, and its retention property was investigated. ○ does not flow down. Δ gradually flows down. × flows down quickly.

(3) Cleaning power 40℃ on the vertical surface of a ventilation fan that has contaminated oil.

A detergent that had been stored for 60 days was applied and washed off with running water after 5 minutes.

○ Dirt is completely removed.

△ Half of the dirt is removed.

× The stains hardly come off.

Claims (1)

[Claims] 1(a) 0.5 to 5% by weight of partially crosslinked polyacrylic acid crosslinked with a crosslinking agent represented by the following general formula (I), ▲There are numerical formulas, chemical formulas, tables, etc.▼( I) (X, Y, Z are -CH=CH_2 or -CH_2-C
H=CH_2 or H, and two or more cannot be H at the same time. ) (b) One or more inorganic or organic alkaline agents 0
．． A liquid detergent composition containing 1 to 30% by weight as an essential component and having a pH of 11 to 14.